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path: root/drivers/infiniband/hw/mlx4/qp.c
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Diffstat (limited to 'drivers/infiniband/hw/mlx4/qp.c')
-rw-r--r--drivers/infiniband/hw/mlx4/qp.c96
1 files changed, 77 insertions, 19 deletions
diff --git a/drivers/infiniband/hw/mlx4/qp.c b/drivers/infiniband/hw/mlx4/qp.c
index cf000b7ad64f..ed2bd6701f9b 100644
--- a/drivers/infiniband/hw/mlx4/qp.c
+++ b/drivers/infiniband/hw/mlx4/qp.c
@@ -40,11 +40,17 @@
#include <rdma/ib_addr.h>
#include <rdma/ib_mad.h>
+#include <linux/mlx4/driver.h>
#include <linux/mlx4/qp.h>
#include "mlx4_ib.h"
#include "user.h"
+static void mlx4_ib_lock_cqs(struct mlx4_ib_cq *send_cq,
+ struct mlx4_ib_cq *recv_cq);
+static void mlx4_ib_unlock_cqs(struct mlx4_ib_cq *send_cq,
+ struct mlx4_ib_cq *recv_cq);
+
enum {
MLX4_IB_ACK_REQ_FREQ = 8,
};
@@ -93,17 +99,6 @@ enum {
#ifndef ETH_ALEN
#define ETH_ALEN 6
#endif
-static inline u64 mlx4_mac_to_u64(u8 *addr)
-{
- u64 mac = 0;
- int i;
-
- for (i = 0; i < ETH_ALEN; i++) {
- mac <<= 8;
- mac |= addr[i];
- }
- return mac;
-}
static const __be32 mlx4_ib_opcode[] = {
[IB_WR_SEND] = cpu_to_be32(MLX4_OPCODE_SEND),
@@ -628,6 +623,8 @@ static int create_qp_common(struct mlx4_ib_dev *dev, struct ib_pd *pd,
struct mlx4_ib_sqp *sqp;
struct mlx4_ib_qp *qp;
enum mlx4_ib_qp_type qp_type = (enum mlx4_ib_qp_type) init_attr->qp_type;
+ struct mlx4_ib_cq *mcq;
+ unsigned long flags;
/* When tunneling special qps, we use a plain UD qp */
if (sqpn) {
@@ -838,6 +835,24 @@ static int create_qp_common(struct mlx4_ib_dev *dev, struct ib_pd *pd,
qp->mqp.event = mlx4_ib_qp_event;
if (!*caller_qp)
*caller_qp = qp;
+
+ spin_lock_irqsave(&dev->reset_flow_resource_lock, flags);
+ mlx4_ib_lock_cqs(to_mcq(init_attr->send_cq),
+ to_mcq(init_attr->recv_cq));
+ /* Maintain device to QPs access, needed for further handling
+ * via reset flow
+ */
+ list_add_tail(&qp->qps_list, &dev->qp_list);
+ /* Maintain CQ to QPs access, needed for further handling
+ * via reset flow
+ */
+ mcq = to_mcq(init_attr->send_cq);
+ list_add_tail(&qp->cq_send_list, &mcq->send_qp_list);
+ mcq = to_mcq(init_attr->recv_cq);
+ list_add_tail(&qp->cq_recv_list, &mcq->recv_qp_list);
+ mlx4_ib_unlock_cqs(to_mcq(init_attr->send_cq),
+ to_mcq(init_attr->recv_cq));
+ spin_unlock_irqrestore(&dev->reset_flow_resource_lock, flags);
return 0;
err_qpn:
@@ -896,13 +911,13 @@ static void mlx4_ib_lock_cqs(struct mlx4_ib_cq *send_cq, struct mlx4_ib_cq *recv
__acquires(&send_cq->lock) __acquires(&recv_cq->lock)
{
if (send_cq == recv_cq) {
- spin_lock_irq(&send_cq->lock);
+ spin_lock(&send_cq->lock);
__acquire(&recv_cq->lock);
} else if (send_cq->mcq.cqn < recv_cq->mcq.cqn) {
- spin_lock_irq(&send_cq->lock);
+ spin_lock(&send_cq->lock);
spin_lock_nested(&recv_cq->lock, SINGLE_DEPTH_NESTING);
} else {
- spin_lock_irq(&recv_cq->lock);
+ spin_lock(&recv_cq->lock);
spin_lock_nested(&send_cq->lock, SINGLE_DEPTH_NESTING);
}
}
@@ -912,13 +927,13 @@ static void mlx4_ib_unlock_cqs(struct mlx4_ib_cq *send_cq, struct mlx4_ib_cq *re
{
if (send_cq == recv_cq) {
__release(&recv_cq->lock);
- spin_unlock_irq(&send_cq->lock);
+ spin_unlock(&send_cq->lock);
} else if (send_cq->mcq.cqn < recv_cq->mcq.cqn) {
spin_unlock(&recv_cq->lock);
- spin_unlock_irq(&send_cq->lock);
+ spin_unlock(&send_cq->lock);
} else {
spin_unlock(&send_cq->lock);
- spin_unlock_irq(&recv_cq->lock);
+ spin_unlock(&recv_cq->lock);
}
}
@@ -963,6 +978,7 @@ static void destroy_qp_common(struct mlx4_ib_dev *dev, struct mlx4_ib_qp *qp,
int is_user)
{
struct mlx4_ib_cq *send_cq, *recv_cq;
+ unsigned long flags;
if (qp->state != IB_QPS_RESET) {
if (mlx4_qp_modify(dev->dev, NULL, to_mlx4_state(qp->state),
@@ -994,8 +1010,13 @@ static void destroy_qp_common(struct mlx4_ib_dev *dev, struct mlx4_ib_qp *qp,
get_cqs(qp, &send_cq, &recv_cq);
+ spin_lock_irqsave(&dev->reset_flow_resource_lock, flags);
mlx4_ib_lock_cqs(send_cq, recv_cq);
+ /* del from lists under both locks above to protect reset flow paths */
+ list_del(&qp->qps_list);
+ list_del(&qp->cq_send_list);
+ list_del(&qp->cq_recv_list);
if (!is_user) {
__mlx4_ib_cq_clean(recv_cq, qp->mqp.qpn,
qp->ibqp.srq ? to_msrq(qp->ibqp.srq): NULL);
@@ -1006,6 +1027,7 @@ static void destroy_qp_common(struct mlx4_ib_dev *dev, struct mlx4_ib_qp *qp,
mlx4_qp_remove(dev->dev, &qp->mqp);
mlx4_ib_unlock_cqs(send_cq, recv_cq);
+ spin_unlock_irqrestore(&dev->reset_flow_resource_lock, flags);
mlx4_qp_free(dev->dev, &qp->mqp);
@@ -1674,8 +1696,10 @@ static int __mlx4_ib_modify_qp(struct ib_qp *ibqp,
qp->mlx4_ib_qp_type == MLX4_IB_QPT_PROXY_GSI ||
qp->mlx4_ib_qp_type == MLX4_IB_QPT_TUN_GSI) {
err = handle_eth_ud_smac_index(dev, qp, (u8 *)attr->smac, context);
- if (err)
- return -EINVAL;
+ if (err) {
+ err = -EINVAL;
+ goto out;
+ }
if (qp->mlx4_ib_qp_type == MLX4_IB_QPT_PROXY_GSI)
dev->qp1_proxy[qp->port - 1] = qp;
}
@@ -1915,6 +1939,22 @@ int mlx4_ib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
goto out;
}
+ if (mlx4_is_bonded(dev->dev) && (attr_mask & IB_QP_PORT)) {
+ if ((cur_state == IB_QPS_RESET) && (new_state == IB_QPS_INIT)) {
+ if ((ibqp->qp_type == IB_QPT_RC) ||
+ (ibqp->qp_type == IB_QPT_UD) ||
+ (ibqp->qp_type == IB_QPT_UC) ||
+ (ibqp->qp_type == IB_QPT_RAW_PACKET) ||
+ (ibqp->qp_type == IB_QPT_XRC_INI)) {
+ attr->port_num = mlx4_ib_bond_next_port(dev);
+ }
+ } else {
+ /* no sense in changing port_num
+ * when ports are bonded */
+ attr_mask &= ~IB_QP_PORT;
+ }
+ }
+
if ((attr_mask & IB_QP_PORT) &&
(attr->port_num == 0 || attr->port_num > dev->num_ports)) {
pr_debug("qpn 0x%x: invalid port number (%d) specified "
@@ -1965,6 +2005,9 @@ int mlx4_ib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
err = __mlx4_ib_modify_qp(ibqp, attr, attr_mask, cur_state, new_state);
+ if (mlx4_is_bonded(dev->dev) && (attr_mask & IB_QP_PORT))
+ attr->port_num = 1;
+
out:
mutex_unlock(&qp->mutex);
return err;
@@ -2609,8 +2652,15 @@ int mlx4_ib_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
__be32 uninitialized_var(lso_hdr_sz);
__be32 blh;
int i;
+ struct mlx4_ib_dev *mdev = to_mdev(ibqp->device);
spin_lock_irqsave(&qp->sq.lock, flags);
+ if (mdev->dev->persist->state & MLX4_DEVICE_STATE_INTERNAL_ERROR) {
+ err = -EIO;
+ *bad_wr = wr;
+ nreq = 0;
+ goto out;
+ }
ind = qp->sq_next_wqe;
@@ -2908,10 +2958,18 @@ int mlx4_ib_post_recv(struct ib_qp *ibqp, struct ib_recv_wr *wr,
int ind;
int max_gs;
int i;
+ struct mlx4_ib_dev *mdev = to_mdev(ibqp->device);
max_gs = qp->rq.max_gs;
spin_lock_irqsave(&qp->rq.lock, flags);
+ if (mdev->dev->persist->state & MLX4_DEVICE_STATE_INTERNAL_ERROR) {
+ err = -EIO;
+ *bad_wr = wr;
+ nreq = 0;
+ goto out;
+ }
+
ind = qp->rq.head & (qp->rq.wqe_cnt - 1);
for (nreq = 0; wr; ++nreq, wr = wr->next) {
generated by cgit v1.2.3 (git 2.39.0) at 2024-11-27 06:02:21 +0300